Question

Look at the graph.

Answer 1

Answer:

its A on endgenuity

Step-by-step explanation:

Answer 2

Answer:

$f(x) =80 \cdot \: {( \frac{1}{4} )}^{x - 1}$

Step-by-step explanation:

Fro the graph, the first three terms of the sequence are 80,20,5,...

This is a geometric sequence with first term

$f(1)= 80$

The common ratio is

$r = \frac{20}{80} = \frac{5}{20} = \frac{1}{4}$

The function is given by

$f(x) = f(1) \cdot \: {r}^{x - 1}$

We substitute the values we got from the graph into this formula to get:

$f(x) =80 \cdot \: {( \frac{1}{4} )}^{x - 1}$

The correct answer is A